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    REPLACEMENT OF TRANSPORT-LAYER CHECKSUM IN CHECKSUM-BASED HEADER COMPRESSION
    2.
    发明申请
    REPLACEMENT OF TRANSPORT-LAYER CHECKSUM IN CHECKSUM-BASED HEADER COMPRESSION 审中-公开
    基于CHECKSUM的HEADER压缩机中运输层检查的更换

    公开(公告)号：WO0158074A3

    公开(公告)日：2002-01-17

    申请号：PCT/SE0100196

    申请日：2001-02-01

    Applicant: ERICSSON TELEFON AB L M

    Inventor： JONSSON LARS-ERIK

    IPC: H03M13/09 ,  H04L1/00 ,  H04L29/06 ,  H03M7/30

    CPC classification number: H04L1/0061 ,  H04L1/0041 ,  H04L1/0083

    Abstract: A method and apparatus for replacing a transport layer header (30) error detection code and a header compression algorithm error detection code with a one error detection code (CRC+). The replacement error detection code (CRC+) covers both the transport layer header (30) and the transport layer payload (14). Such an arrangement reduces the amount of as-is or uncompressed information transmitted, thereby reducing the required bandwidth. The replacement error detection code (CRC+) is subsequently used to verify the correctness of both the reconstructed header and the payload (14).

    Abstract translation: 一种用于以一个错误检测码（CRC +）代替传输层报头（30）错误检测码和报头压缩算法错误检测码的方法和装置。 替换错误检测码（CRC +）覆盖传输层报头（30）和传输层有效载荷（14）。 这样的布置减少了所传送的原始或未压缩信息的数量，从而减少了所需的带宽。 随后使用替换错误检测码（CRC +）来验证重建的报头和有效载荷的正确性（14）。

    DYNAMIC ROBUST HEADER COMPRESSION
    3.
    发明申请
    DYNAMIC ROBUST HEADER COMPRESSION 审中-公开
    动态稳定头部压缩

    公开(公告)号：WO2006137803A3

    公开(公告)日：2007-02-15

    申请号：PCT/SE2006050208

    申请日：2006-06-19

    Applicant: ERICSSON TELEFON AB L M

    Inventor： PELLETIER GHYSLAIN ,  JONSSON LARS-ERIK

    IPC: H04L29/06 ,  H04L1/00 ,  H04W28/06

    CPC classification number: H04W28/06 ,  H04L1/1809 ,  H04L1/1848 ,  H04L1/187 ,  H04L29/0604 ,  H04L29/0653 ,  H04L69/04 ,  H04L69/22 ,  H04W28/14

    Abstract: A unit (25, 46) performs a compression operation or a decompression operation with respect to information for transmission in packets over a wireless link (36). The transmission over the wireless link is such that the packets may become reordered from a transmission sequence. The compression operation and the decompression operation involve a tradeoff of robustness and reordering depth. The robustness is an indicator of a degree of information loss over the link tolerated by the compression operation and the decompression operation; the reordering depth is a degree of packet reordering tolerated by the compression operation and the decompression operation. The unit dynamically adjusts the tradeoff of the robustness and the reordering depth in accordance with characteristics of the link. In an example embodiment, the information upon which the compression operation and the decompression operation is performed is sequence number information of a packet header.

    Abstract translation: 一个单元（25,46）通过无线链路（36）对分组中的信息进行压缩操作或解压缩操作。 通过无线链路的传输使得分组可以从传输序列重新排序。 压缩操作和解压缩操作涉及鲁棒性和重排序深度的权衡。 鲁棒性是通过压缩操作和减压操作允许的链路上的信息丢失程度的指标; 重排序深度是压缩操作和解压缩操作所容许的分组重新排序的程度。 该单元根据链路的特征动态调整鲁棒性和重新排序深度的权衡。 在示例实施例中，执行压缩操作和解压缩操作的信息是分组报头的序列号信息。

    BROADCAST/MULTICAST SERVICES WITH UNIDIRECTIONAL HEADER COMPRESSION
    4.
    发明申请
    BROADCAST/MULTICAST SERVICES WITH UNIDIRECTIONAL HEADER COMPRESSION 审中-公开
    广播/多媒体服务，具有单向头部压缩

    公开(公告)号：WO2005076562A8

    公开(公告)日：2005-10-06

    申请号：PCT/SE2005000144

    申请日：2005-02-01

    Applicant: ERICSSON TELEFON AB L M ,  JONSSON LARS-ERIK ,  PELLETIER GHYSLAIN

    Inventor： JONSSON LARS-ERIK ,  PELLETIER GHYSLAIN

    IPC: H04L12/00 ,  H04L12/56 ,  H04L29/00 ,  H04L29/06 ,  H04W4/06 ,  H04W28/04 ,  H04W28/06 ,  H04W80/00 ,  H04Q7/00

    CPC classification number: H04W28/06 ,  H04L69/04 ,  H04W4/06 ,  H04W80/00

    Abstract: A network node (60), upon receiving a request (62, 92) indicating that the remote unit (40) seeks access to a multicast/broadcast multimedia service, generates the trigger signal (64) which is applied to the compressor (25) to trigger a lowest compression state of the header compression logic. The trigger signal is generated external to the header compression logic, and prior to generation of an initial packet of the media flow (34) by a multimedia server (21). As both a distinct and combinable aspect, the network node (60) can also generate the trigger signal (64) to trigger a transition to the lowest compression state of the header compression logic upon receipt of an indication of a decompression problem which has occurred at the remote unit (40). The decompression problem can be, for example, a compression initialization failure or compression static context damage. The indication of the decompression problem is preferably an attempt (92) by the remote unit to reinitiate access to the multicast/broadcast multimedia service.

    Abstract translation: 网络节点（60）在接收到指示远程单元（40）寻求对多播/广播多媒体服务的访问的请求（62,92）时产生应用于压缩器（25）的触发信号（64） 以触​​发报头压缩逻辑的最低压缩状态。 触发信号在标题压缩逻辑外部生成，并且在由多媒体服务器（21）产生媒体流（34）的初始分组之前生成。 作为一个不同且可组合的方面，网络节点（60）还可以生成触发信号（64），以在接收到已经发生的解压缩问题的指示时触发转移到报头压缩逻辑的最低压缩状态 远程单元（40）。 解压缩问题可能是例如压缩初始化故障或压缩静态上下文损坏。 解压缩问题的指示优选地是远程单元重新启动对多播/广播多媒体服务的访问的尝试（92）。

    PROTOCOL HEADER COMPRESSION
    5.
    发明申请
    PROTOCOL HEADER COMPRESSION 审中-公开
    协议头压缩

    公开(公告)号：WO0207323A3

    公开(公告)日：2002-09-06

    申请号：PCT/SE0101493

    申请日：2001-06-28

    Applicant: ERICSSON TELEFON AB L M

    Inventor： HAAKANSSON STEFAN ,  JOHANSSON INGEMAR ,  SVANBRO KRISTER ,  JONSSON LARS-ERIK ,  DEGERMARK MIKAEL ,  HANNU HANS

    IPC: H04L1/00 ,  H03M7/30 ,  H03M13/09 ,  H04L12/56 ,  H04L29/06 ,  H04Q7/38

    CPC classification number: H03M13/6312 ,  H03M7/30 ,  H03M13/09 ,  H03M13/098 ,  H04L69/04 ,  H04L69/22 ,  Y10S370/913

    Abstract: In packet communications that employ header compression/decompression, the computational complexity of checksum generation can be reduced by re-using static checksum information associated with header bits (S) that do not change from header to header. The static checksum information can be used together with information about header bits (T) that do change from header to header, in order to generate a desired checksum (CS). The checksum can then be used to verify a reconstructed header (17) produced from a compressed header by a header decompressor.

    Abstract translation: 在采用报头压缩/解压缩的分组通信中，可以通过重新使用与从报头到报头不改变的报头比特（S）相关联的静态校验和信息来减少校验和生成的计算复杂度。 静态校验和信息可以与关于从头到头改变的头比特（T）的信息一起使用，以便生成期望的校验和（CS）。 然后可以使用校验和来验证由标题解压缩器从压缩报头产生的重建报头（17）。

    MANIPULATING HEADER FIELDS FOR IMPROVED PERFORMANCE IN PACKET COMMUNICATIONS
    6.
    发明申请
    MANIPULATING HEADER FIELDS FOR IMPROVED PERFORMANCE IN PACKET COMMUNICATIONS 审中-公开
    用于改进分组通信性能的管理字段

    公开(公告)号：WO0124443A3

    公开(公告)日：2001-12-06

    申请号：PCT/SE0001572

    申请日：2000-08-11

    Applicant: ERICSSON TELEFON AB L M

    Inventor： SUNDQVIST JIM ,  HARASZTI ZSOLT ,  SVANBRO KRISTER ,  JONSSON LARS-ERIK ,  AYADURAI VICKNESAN

    IPC: H04L12/56 ,  H04L29/06

    CPC classification number: H04L69/04 ,  H04L29/06 ,  H04L69/22

    Abstract: In packet communication paths (18) that include header compression, header fields of packets to be communicated are altered. The alteration of the header fields (14) does not disturb their functionality, and its transparent to the header compression scheme of the packet communication path (18). The altered header fields (14) are provided for compression by the header compression scheme, resulting in improved performance of the header compression scheme. Performance improvements can also be achieved in packet communication paths (18) that do not use header compression, by violating the integrity of header fields in packets to be transmitted over the packet communication path (18).

    Abstract translation: 在包括报头压缩的分组通信路径（18）中，改变要传送的分组的报头字段。 头字段（14）的改变不会干扰它们的功能，并且它对分组通信路径（18）的报头压缩方案是透明的。 改变的报头字段（14）被提供用于通过报头压缩方案进行压缩，从而提高报头压缩方案的性能。 通过违反要通过分组通信路径（18）发送的分组中的报头字段的完整性，也可以在不使用报头压缩的分组通信路径（18）中实现性能改进。

    METODO DE COMPRESION DE CABECERA.
    10.
    发明专利
    METODO DE COMPRESION DE CABECERA. 未知

    公开(公告)号：ES2287572T3

    公开(公告)日：2007-12-16

    申请号：ES03808009

    申请日：2003-09-16

    Applicant: ERICSSON TELEFON AB L M

    Inventor： PELLETIER GHYSLAIN ,  JONSSON LARS-ERIK

    IPC: H04L29/06 ,  H03M7/30

    Abstract: Método para producir una banda multicapa (14) que comprende al menos tres capas de material flexible, tal como papel y material no tejido, encolando las capas, en el que un primer rodillo de transferencia de cola con diseño (5), que tiene un diseño tridimensional de protuberancias (6), se pone en contacto con un primer dispositivo de aplicación de cola (4), y transfiere cola a un primer (1) material flexible en forma de banda (1) en un diseño de encolado que corresponde a la configuración de las protuberancias (6), un segundo material flexible en forma de banda (7) que se pone en contacto con el lado en el que se ha aplicado la cola de dicho primer material flexible en forma de banda (1), un segundo rodillo de transferencia de cola con diseño (14) que tiene un diseño tridimensional de protuberancias (15), se pone en contacto con un segundo dispositivo de aplicación de cola (13), y transfiere cola a un lado externo de los materiales flexibles en forma de banda primero y segundo combinados (1, 7) en un segundo diseño de encolado que corresponde a al configuración de las protuberancias (15) del segundo rodillo de transferencia de cola, un tercer material flexible en forma de banda (16) que se pone en contacto con el lado en el que se ha aplicado cola de dichos primer y segundo materiales flexibles en forma de banda combinados (1, 7) en una pinza de prensado entre un rodillo de laminación con diseño (18) que tiene un diseño tridimensional de protuberancias (19) que corresponde a los diseño de encolado primero y/o segundo, caracterizado porque el diseño de encolado de dicho segundo rodillo de transferencia de cola (14) se aplica, como se observa, a lo ancho de la banda multicapa, alineado sustancialmente con el diseño de encolado aplicado por el primer rodillo de transferencia de cola (5), el rodillo de laminación (18) y el primer y segundo rodillos de transferencia de cola (5, 14) se hacen funcionar en coincidencia exacta entre sí, de modo que al menos tres capas del material flexible en forma de banda (1, 7, 16) se prensan y encolan conjuntamente en un diseño que corresponde a los diseños de encolado alineados.

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